WO2002093801A3 - Silence detection - Google Patents

Silence detection Download PDF

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Publication number
WO2002093801A3
WO2002093801A3 PCT/IB2002/001639 IB0201639W WO02093801A3 WO 2002093801 A3 WO2002093801 A3 WO 2002093801A3 IB 0201639 W IB0201639 W IB 0201639W WO 02093801 A3 WO02093801 A3 WO 02093801A3
Authority
WO
WIPO (PCT)
Prior art keywords
signal power
silence detection
threshold value
local
range
Prior art date
Application number
PCT/IB2002/001639
Other languages
French (fr)
Other versions
WO2002093801A2 (en
Inventor
Alessio Stella
Jan A D Nesvadba
Mauro Barbieri
Freddy Snijder
Original Assignee
Koninkl Philips Electronics Nv
Alessio Stella
Jan A D Nesvadba
Mauro Barbieri
Freddy Snijder
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Koninkl Philips Electronics Nv, Alessio Stella, Jan A D Nesvadba, Mauro Barbieri, Freddy Snijder filed Critical Koninkl Philips Electronics Nv
Priority to AT02727889T priority Critical patent/ATE438968T1/en
Priority to JP2002590554A priority patent/JP4560269B2/en
Priority to DE60233223T priority patent/DE60233223D1/en
Priority to KR10-2003-7000454A priority patent/KR20030027938A/en
Priority to EP02727889A priority patent/EP1393480B1/en
Priority to US10/476,967 priority patent/US7617095B2/en
Publication of WO2002093801A2 publication Critical patent/WO2002093801A2/en
Publication of WO2002093801A3 publication Critical patent/WO2002093801A3/en

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04H—BROADCAST COMMUNICATION
    • H04H60/00—Arrangements for broadcast applications with a direct linking to broadcast information or broadcast space-time; Broadcast-related systems
    • H04H60/56—Arrangements characterised by components specially adapted for monitoring, identification or recognition covered by groups H04H60/29-H04H60/54
    • H04H60/58—Arrangements characterised by components specially adapted for monitoring, identification or recognition covered by groups H04H60/29-H04H60/54 of audio
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; SPEECH OR AUDIO CODING OR DECODING
    • G10L25/00—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00
    • G10L25/03—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00 characterised by the type of extracted parameters
    • G10L25/21—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00 characterised by the type of extracted parameters the extracted parameters being power information
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; SPEECH OR AUDIO CODING OR DECODING
    • G10L19/00—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis
    • G10L19/02—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis using spectral analysis, e.g. transform vocoders or subband vocoders
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; SPEECH OR AUDIO CODING OR DECODING
    • G10L25/00—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00
    • G10L25/78—Detection of presence or absence of voice signals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/41—Structure of client; Structure of client peripherals
    • H04N21/426—Internal components of the client ; Characteristics thereof
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
    • H04N21/439—Processing of audio elementary streams
    • H04N21/4394—Processing of audio elementary streams involving operations for analysing the audio stream, e.g. detecting features or characteristics in audio streams
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/44—Receiver circuitry for the reception of television signals according to analogue transmission standards
    • H04N5/60—Receiver circuitry for the reception of television signals according to analogue transmission standards for the sound signals
    • H04N5/602—Receiver circuitry for the reception of television signals according to analogue transmission standards for the sound signals for digital sound signals
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; SPEECH OR AUDIO CODING OR DECODING
    • G10L19/00—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis
    • G10L19/02—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis using spectral analysis, e.g. transform vocoders or subband vocoders
    • G10L19/0204—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis using spectral analysis, e.g. transform vocoders or subband vocoders using subband decomposition
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/80—Generation or processing of content or additional data by content creator independently of the distribution process; Content per se
    • H04N21/81—Monomedia components thereof
    • H04N21/812—Monomedia components thereof involving advertisement data

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Multimedia (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Computational Linguistics (AREA)
  • Health & Medical Sciences (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Human Computer Interaction (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Stereo-Broadcasting Methods (AREA)
  • Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
  • Television Systems (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Reduction Or Emphasis Of Bandwidth Of Signals (AREA)
  • Tone Control, Compression And Expansion, Limiting Amplitude (AREA)
  • Signal Processing Not Specific To The Method Of Recording And Reproducing (AREA)
  • Air Bags (AREA)
  • Control Of Stepping Motors (AREA)
  • Amplifiers (AREA)
  • Transmission Systems Not Characterized By The Medium Used For Transmission (AREA)
  • Signal Processing For Digital Recording And Reproducing (AREA)

Abstract

Silences are detected when a local signal power is below a given fixed or relative threshold value, the duration of the local signal power being below the given fixed or relative threshold value is within a first range and at least one of the parameters signal power fall/rise rate and local power deviation falls within a respective further range. The invention further relates to the use of such a silence detection in a receiver (1).
PCT/IB2002/001639 2001-05-11 2002-05-10 Silence detection WO2002093801A2 (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
AT02727889T ATE438968T1 (en) 2001-05-11 2002-05-10 SILENCE DETECTION
JP2002590554A JP4560269B2 (en) 2001-05-11 2002-05-10 Silence detection
DE60233223T DE60233223D1 (en) 2001-05-11 2002-05-10 SILENT DETECTION
KR10-2003-7000454A KR20030027938A (en) 2001-05-11 2002-05-10 Silence detection
EP02727889A EP1393480B1 (en) 2001-05-11 2002-05-10 Silence detection
US10/476,967 US7617095B2 (en) 2001-05-11 2002-05-10 Systems and methods for detecting silences in audio signals

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP01201730 2001-05-11
EP01201730.7 2001-05-11

Publications (2)

Publication Number Publication Date
WO2002093801A2 WO2002093801A2 (en) 2002-11-21
WO2002093801A3 true WO2002093801A3 (en) 2003-01-30

Family

ID=8180284

Family Applications (2)

Application Number Title Priority Date Filing Date
PCT/IB2002/001561 WO2002093552A1 (en) 2001-05-11 2002-05-08 Estimating signal power in compressed audio
PCT/IB2002/001639 WO2002093801A2 (en) 2001-05-11 2002-05-10 Silence detection

Family Applications Before (1)

Application Number Title Priority Date Filing Date
PCT/IB2002/001561 WO2002093552A1 (en) 2001-05-11 2002-05-08 Estimating signal power in compressed audio

Country Status (8)

Country Link
US (2) US7356464B2 (en)
EP (2) EP1393301B1 (en)
JP (2) JP4365103B2 (en)
KR (2) KR100916959B1 (en)
CN (3) CN100380441C (en)
AT (1) ATE438968T1 (en)
DE (2) DE60217484T2 (en)
WO (2) WO2002093552A1 (en)

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Also Published As

Publication number Publication date
EP1393480A2 (en) 2004-03-03
WO2002093801A2 (en) 2002-11-21
JP4560269B2 (en) 2010-10-13
US7356464B2 (en) 2008-04-08
JP4365103B2 (en) 2009-11-18
CN1462426A (en) 2003-12-17
DE60217484T2 (en) 2007-10-25
ATE438968T1 (en) 2009-08-15
US20040138880A1 (en) 2004-07-15
CN100380441C (en) 2008-04-09
EP1393301B1 (en) 2007-01-10
KR20030027938A (en) 2003-04-07
CN1612607A (en) 2005-05-04
DE60233223D1 (en) 2009-09-17
CN100348034C (en) 2007-11-07
US20040125961A1 (en) 2004-07-01
KR100916959B1 (en) 2009-09-14
CN1462427A (en) 2003-12-17
JP2004520627A (en) 2004-07-08
EP1393301A1 (en) 2004-03-03
EP1393480B1 (en) 2009-08-05
WO2002093552A1 (en) 2002-11-21
KR20030015385A (en) 2003-02-20
DE60217484D1 (en) 2007-02-22
US7617095B2 (en) 2009-11-10
CN1244900C (en) 2006-03-08
JP2004531766A (en) 2004-10-14

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